Method and device for handling preserving jars



G. WINKLER.

METHOD AND DEVICE FOR HANDLING PRESERVING JARS.

APPLICATION FILED SEPT. 81 I920.

. Patented May 9, 1922.

' I Invehtnr:

a/btO/IMW liquid, as, for instance,

' vices for preserving,

UNITED STATES PATENT XOFFICE.

. Specification of Letters Patent. I

Patented May 9,1922.

' i Application filed septemberks, 1920. Serial No. 409,014.

To all whom it may concern:

Be it known that I, GUSTAV WINKL'ER, a citizen of the German Empire, residing at Dessau, Germany, have invented certain new and useful Improvements in Methods and Devices for Handling Preserving Jars, of which the followin is aspecification.

My invention re ers tomethods and deandcmore especially to a method and a device for removing the air and for closing and opening preserving jars and similar vessels by means of vacuum in an auxiliary receptacle.

The methods and devices hitherto known and employing vacuum for removing the air from preserving jars and the like, as well as for closing and opening them, have not been generally adopted for use in the household and this more especially because it is very diflicult to keep the auxiliary receptacles in which the jars for sucking off the air permanently tight, so that only a poor preservation of the substances to be preserved is achieved and much energy and time is consumed.

My invention which aims at overcoming these drawbacks, consists in a modification of the methods already knoyvn, in such a way that the air still remaining in the auxiliary receptacle after the preserving jars, filled I up and closed in a watertight manner, have been placed in the same, is displaced by some water; and in this liquid being sucked ofl" forcibly and by jerks after the receptacle has been closed, thereby achieving a removal of air from the sub stances to be preserved and from the preserving jars sufiicing for keeping the preserves for a longe period of time, with a minimum consum tion of time and energy without an apparatus constructed particularly carefully being required for the purpose.

I am aware that it is old in the art of preserving substances to remove the liquid from a receptacle filled with liquid, and to suck ofi liquids or gases from other spaces by means of a vacuum produced as above.

In comparison with thls the new departure in my invention consists in the preserving jars after filling being placed directly in the liquid serving tolremove the air, and in their being surrounded and covered by the same and furthermore in the said liquid being sucked oif forcibly and by jerks. Ow-

entirely with. liquid,

are placed, and the devices mg to the auxiliary receptacle being filled only water need be pumped oil for removing the air from the fruit to be preserved, and a more thorough removal of the air is achieved by sucking it off forclbly than by simply letting the water off in accordance with the methods hitherto known. Sucking the liquid off by jerks produces the efl"ec t that no water can penetrate into the interlor of the preserving jars in the course of removing the air, because in the return stroke of the piston a small amount of pos1t1ve pressure which presses down the lids of the preserving jars, occurs eacht1me. With this new method preserv- 111g ars and the like can not only be ridded of air and closed, but also be opened again. In the drawings affixed to this spec1ficat1on,and forming part thereof, a device for the performance of the process and embodying my invention is illustrated by way of example. In the drawings Fig. 1 is a vertical section of the device ready for removing the air serving jar and for closing the same,

ig. 2 is a section of the device after completing the removal of the air and ready for admitting the air into the receptacle,

Fig. 3 is a similar view of the device at the moment of opening the preserving jar,

Figs. 4 and 5 are vertical sections of the upper part of the preserving jar with the lid and the belt consisting of a coiled spring shown in two positions.

Referring to the drawings, the auxiliary receptacle a (Fig. 1) is provided with the lid I) placed loosely on a packing-ring, the said lid being provided with a handle 0 and a hole (Z serving to let in the air. A water pump (2 is attached to the receptacle a by means of a suction pipe 0 The piston? g contains the check valve It, whilst the suction valve f is located at the bottom of the pump.

The water pumped ofi, fiows into the beaker The pump is worked from the preof the water is now proceeded with until the piston Wor s with difliculty and tends to rebound. T e lid p of the preserving jar o in the course of this is pressed down lightly by a clamping spring 9 so that no water can enter. Despite this clamping spring the removal ofair from the preserving 'ar takes place in the course of tapping ofi t e water and can be regarded as finished on the piston rebounding, without its being necessary to watch a vacuum gauge. On the hand bein removed from the handle a of the lid (1. ig. 2) the air flows into the receptacle a through the hole d and presses down the lid p. The lid 1) can now also be removed and the closed glass jar 0 can be taken out.

In a similar manner glass jars for preserving can also be opened again. For this purpose the'preserving glass 0 to be opened is placed in the receptacle a (Fig. 3) after a spring, preferably a belt consisting of a coiled spring at (Figs. 3 and 4), has

7 previously been inserted in the joint between the lid 12 and the edgeof the glass .5 under-tension. The receptacle is now filled entirely with water and the lid b covered with water, whereupon the water is pumped from the receptacle a, in the course ofwhich process the aperture (Z. is kept closed with the hand. As soon as the same degree of vacuum is attained in the receptacle a as that prevailing in the preserving glass, the

belt spring u enters further into the joint between the glass jar and the lid, thereby lifting up the lid p (Fig. 5). If air is now leit into the receptacle, the lid 7) can no longer 0 ose.

The receptacle consists of metal, its lid 1) is, however, made of glass. For purposes of strengthening, the lid bis providedwith a bow-piece c which simultaneously serves as a handle and as a support for the hand during the pumping and which contains the said liquid from said container.

2. The method which consists in placing a superficially closed preserving receptacle within a container, filling said container with a suitable liquid, closing said container, displacing the air still present therein by liquid and forcibly and by jerks pumping some liquid from said container.

3. In a device of the kind described in combination, a container, a cover for said container, a grip on said cover, a boring laid through said grip and said cover, a seat for said cover below the upper edge of said container and a liquid pump connected with said container.

be dis- In testimony whereof I afiix my signature.

GUSTAV WINKLER. 

